/*
 * This file is part of algowala.
 *
 * algowala is copyright (c) 2012 Jagannathan Sampath <algowala@jagernot.com>
 *
 * algowala is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * algowala is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with algowala.  If not, see <http://www.gnu.org/licenses/>.
 *
*/

#ifndef ___random
#define ___random

#include <iostream>
#include <cstdlib>
using namespace std;

template<typename T> class rnd {

  T min, max;
  T delta;
  
  inline double get_rand_01 () {
    return (rand () * 1.0 / RAND_MAX);
  }

  public:
  
    rnd (T mi = 0, T ma = 0) {
      min = mi;
      max = ma;
      delta = max - min;
    }
    
    rnd (const rnd& r) {
      operator= (r);
    }
    
    rnd& operator= (const rnd& r) {
      if (&r != this) {
        min = r.min;
        max = r.max;
        delta = r.delta;
      }
      return *this;
    }
    
    T operator() () {
      return (T) (min + delta * get_rand_01 ());
    }
};

#endif
